iOS preferences outside the application bundle

Hi. I've seen demos for writing app preferences within the app's bundle, but we have to deliver apps internally that have a unique assigned id on each device and changing the value, recompiling and placing the app on each device is far from ideal.

What would be nice is that if I could save the preferences outside the application's bundle so that the preference file is outside of the app, preferably in /Library/Preferences/com.myCo.myApp.pList.

This would allow us to recompile 1 app and place it on each iDevice while retaining the prefs that were set previously.